[Objective] To observe the relation between the fetus cerebral lateral fissure depth in middle pregnancy and gestational weeks and offer foundation for whether or not normal growth of fetus cerebral cortex in antenatal early evaluation. [Method] Observe the shape of fetus cerebral lateral fissure of 18~24w pregnant women 559 cases with ultrasound, and measure the depth at cerebel um cross section. [Result] The 559 cases of pregnant women ’s fetus cerebral lat-eral fissure depth increases with gestational weeks, the shape changes blunt from smooth. [Conclusion] The ultrasound observation of fetus cerebral lateral fis-sure depth which increases with gestational weeks can be taken to offer relative basis for early evaluation of whether or not normal cerebral cortex growth.

Objective To assess the effectiveness of continuous aspiration of subglottic secretions (CASS)in preventing ventilator-associated pneumonia.Methods The relevant randomized controlled trials were searched in the Cochrane Library,Pubmed,CNKI,VIP and Wanfang databases.The experimental group received CASS and the control group did not(NASS group).Two reviewers selected studies according to the inclusion and exclusion criteria,the quality of studies was critically appraised and data were extracted by two reviewers independently.Meta-analysis was conducted by using RevMan 5.2.Results Sixteen randomized controlled trials met the inclusion criteria and enrolled 2 576 patients.According to the meta analysis,compared with NASS,CASS reduced the incidence of ventilator-associated pneumonia,shortened the length of stay in the intensive care unit and the duration of mechanical ventilation.There was no effect on hospital mortality.Conclusions Continuous aspiration of subglottic secretions appears effective in preventing ventilator-associated pneumonia,decreasing the duration of intensive care unit length of stay and mechanical ventilation among critically ill patients with mechanical ventilation.

ObjectiveTo explore the infulence and to look for an optimal management of delayed meconium exclusion to the premature infant,in order to offer the dependence of diminished neonatal complications.Methods 23 premature infants with delayed meconium were randomly assigned into treatment group and control group.12 premature infants with normal meconium were selected as a normal group.Using the 6F silicone rubber stomach tube help the premature infants exclusing meconium by high-frequency ultrasound in treatment group.2-3ml glycerin mixed with 10-20ml warmed normal saline was given every two days or when vomit,abdominal distension appeared in control group.ResultsThere are no significant differences in serum bilirubin level,recovering days of weight,occurence rate of vomiting,abdominal distension between the treatment group and the normal premature infants group (P ＞ 0.05 ).Oppositively,there were significant differences between the control group and the treatment group ( all P ＜ 0.01).ConclusionUsing high-frequency ultrasound to treat the delay meconium exclusion is an optimal management,it may reduce the complications and recovery the weight of the premature infants with delayed meconium exclusions.

Objective To describe the status of breast reconstruction patients′decision regret, self-efficacy and satisfaction with information in the preoperative period, and discuss the correlation among them. Methods Four instruments were used to investigate 100 breast reconstruction patients in one tertiary hospital in Guangzhou, including participants′ personal profile, Decision Regret Scale, Modified Stanford Self-Efficacy Scale and the subscale of Information Satisfaction of Breast Reconstruction-Questionnaire. Results The mean score of Decision Regret Scale was (10.8 ± 2.5)points in breast reconstruction patients, and the minority of patients experienced decision regret (30%, 30/100). The mean score of self-efficacy and satisfaction with information in the preoperative period were (6.6±1.9) and (2.9± 0.6) points. The study also found that decision regret was negatively correlated with self-efficacy and satisfaction with information in the preoperative period (P < 0.01). Conclusions Totally 30 percent of patients experienced decision regret to undergo breast reconstruction. However, patients who had lower levels of self-efficacy and satisfaction with information in the preoperative period were at greater risk to experience decision regret to undergo breast reconstruction. The results may assist health care professionals to provide appropriate psychological support, care and information.

In this study, we explored the neural mechanism underlying impaired stereopsis and possible functional plasticity after strabismus surgery. We enrolled 18 stereo-deficient patients with intermittent exotropia before and after surgery, along with 18 healthy controls. Functional magnetic resonance imaging data were collected when participants viewed three-dimensional stimuli. Compared with controls, preoperative patients showed hypoactivation in higher-level dorsal (visual and parietal) areas and ventral visual areas. Pre- and postoperative activation did not significantly differ in patients overall; patients with improved stereopsis showed stronger postoperative activation than preoperative activation in the right V3A and left intraparietal sulcus. Worse stereopsis and fusional control were correlated with preoperative hypoactivation, suggesting that cortical deficits along the two streams might reflect impaired stereopsis in intermittent exotropia. The correlation between improved stereopsis and activation in the right V3A after surgery indicates that functional plasticity may underlie the improvement of stereopsis. Thus, additional postoperative strategies are needed to promote functional plasticity and enhance the recovery of stereopsis.
Humans ; Exotropia/surgery* ; Depth Perception/physiology* ; Strabismus/surgery* ; Oculomotor Muscles/surgery*